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#include "cycleclock.h"
#ifdef HAVE_TICK_COUNTER
#include <cctk.h>
#include <cctk_Parameters.h>
#include <cmath>
namespace CycleClock {
using namespace std;
class cycleclock_t {
double sum;
double sum2;
double min;
double max;
double count;
ticks last;
public:
cycleclock_t()
{
reset();
start();
}
~cycleclock_t()
{
}
void start()
{
last = getticks();
}
void stop()
{
ticks const current = getticks();
double const difference = elapsed(current, last);
sum += difference;
sum2 += pow(difference, 2.0);
min = min == 0.0 ? difference : fmin(min, difference);
max = fmax(min, difference);
count += 1.0;
}
void reset()
{
sum = 0.0;
sum2 = 0.0;
min = 0.0; // numeric_limits<double>::max();
max = 0.0;
count = 0.0;
}
void get(cTimerVal* restrict const vals) const
{
double const tick = seconds_per_tick();
// Sum time
vals[0].type = val_double;
vals[0].heading = "cycle";
vals[0].units = "secs";
vals[0].val.d = sum;
vals[0].seconds = tick * vals[0].val.d;
vals[0].resolution = tick;
// Average
vals[1].type = val_double;
vals[1].heading = "cycle[avg]";
vals[1].units = "secs";
vals[1].val.d = count == 0.0 ? 0.0 : sum / count;
vals[1].seconds = tick * vals[1].val.d;
vals[1].resolution = tick;
// Standard deviation
vals[2].type = val_double;
vals[2].heading = "cycle[sdv]";
vals[2].units = "secs";
vals[2].val.d = (count == 0.0 ?
0.0 :
sqrt(fabs(sum2 * count - pow(sum, 2.0)) / count));
vals[2].seconds = tick * vals[2].val.d;
vals[2].resolution = tick;
// Minimum
vals[3].type = val_double;
vals[3].heading = "cycle[min]";
vals[3].units = "secs";
vals[3].val.d = min;
vals[3].seconds = tick * vals[3].val.d;
vals[3].resolution = tick;
// Maximum
vals[4].type = val_double;
vals[4].heading = "cycle[max]";
vals[4].units = "secs";
vals[4].val.d = max;
vals[4].seconds = tick * vals[4].val.d;
vals[4].resolution = tick;
}
void set(cTimerVal const* restrict const vals)
{
reset(); // punt
sum = vals[0].val.d;
}
};
void* cycleclock_create(int const timernum)
{
return new cycleclock_t;
}
void cycleclock_destroy(int const timernum, void* const data)
{
if (!data) return;
delete static_cast<cycleclock_t*>(data);
}
void cycleclock_start(int const timernum, void* const data)
{
static_cast<cycleclock_t*>(data)->start();
}
void cycleclock_stop(int const timernum, void* const data)
{
static_cast<cycleclock_t*>(data)->stop();
}
void cycleclock_reset(int const timernum, void* const data)
{
static_cast<cycleclock_t*>(data)->reset();
}
void cycleclock_get(int const timernum, void* const data,
cTimerVal* const vals)
{
static_cast<cycleclock_t const*>(data)->get(vals);
}
void cycleclock_set(int const timernum, void* const data,
cTimerVal* const vals)
{
static_cast<cycleclock_t*>(data)->set(vals);
}
void cycleclock_register()
{
cClockFuncs functions;
functions.n_vals = 5;
functions.create = cycleclock_create;
functions.destroy = cycleclock_destroy;
functions.start = cycleclock_start;
functions.stop = cycleclock_stop;
functions.reset = cycleclock_reset;
functions.get = cycleclock_get;
functions.set = cycleclock_set;
CCTK_ClockRegister("cycle", &functions);
}
extern "C"
int CycleClock_Setup()
{
DECLARE_CCTK_PARAMETERS;
measure_tick();
if (register_clock) {
cycleclock_register();
}
return 0;
}
} // namespace CycleClock
#endif
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